Medium severity5.5NVD Advisory· Published Apr 24, 2026· Updated Apr 27, 2026
CVE-2026-31556
CVE-2026-31556
Description
In the Linux kernel, the following vulnerability has been resolved:
xfs: scrub: unlock dquot before early return in quota scrub
xchk_quota_item can return early after calling xchk_fblock_process_error. When that helper returns false, the function returned immediately without dropping dq->q_qlock, which can leave the dquot lock held and risk lock leaks or deadlocks in later quota operations.
Fix this by unlocking dq->q_qlock before the early return.
AI Insight
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Affected products
48cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 8 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=6.8.1,<6.12.80
- cpe:2.3:o:linux:linux_kernel:6.8:-:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
- osv-coords39 versionspkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2016.0pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Micro%206.2pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.2pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2016.0pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Micro%206.2pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/kernel-obs-qa&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-obs-qa&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Micro%206.2pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.2pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0
< 6.12.0-160000.35.1+ 38 more
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1.160000.2.16
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1.160000.2.16
- (no CPE)range: < 6.12.0-160000.35.1.160000.2.16
- (no CPE)range: < 6.12.0-160000.35.1.160000.2.16
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
- (no CPE)range: < 6.12.0-160000.35.1
Patches
Vulnerability mechanics
References
4News mentions
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